In 2017, a survey finds that there are 34 babies born for every 1,000 families in a city. Among these babies, 20 of them are boys. There are 88,326 families in this city in 2017 and the total number of girls born in this year is about

The jones farm has 24 cows that each produce 52 quarts of milk a day. how many quarts are produced each day altogether

Translate this phrase into an algebraic expression. 21 more than twice goran's savings use the variable g to represent goran's savings. need to know fast.

Afactory makes propeller drive shafts for ships. a quality assurance engineer at the factory needs to estimate the true mean length of the shafts. she randomly selects four drive shafts made at the factory, measures their lengths, and finds their sample mean to be 1000 mm. the lengths are known to follow a normal distribution whose standard deviation is 2 mm. calculate a 95% confidence interval for the true mean length of the shafts. input your answers for the margin of error, lower bound, and upper bound.